EP 0671779 A1 19950913 - Low profile polarization diversity planar antenna.
Title (en)
Low profile polarization diversity planar antenna.
Title (de)
Ebene Polarisationsdiversitäts-Antenne mit kleinen Abmessungen.
Title (fr)
Antenne plane à diversité de polarisation à structure mince.
Publication
Application
Priority
JP 3799694 A 19940309
Abstract (en)
A low profile polarization diversity planar antenna capable of effectively separating the horizontal and vertical polarization The antenna combines a notch antenna (A) and a patch antenna (B) in a low profile structure. The notch antenna comprises a ground plate (10), a feed plate (20), and a radiator plate (30) which are stacked in a spaced relation. The radiator plate is shorted to the ground plate at its center and formed in its periphery with at least two radial notches (38). The feed plate carries feeder probes (27) each located adjacent to each one of the notches for feeding the notch antenna. The patch antenna comprises a patch (40) stacked above the radiator plate (30). The patch (40) is grounded at one portion thereof and has a feed point spaced from the grounded portion for feeding the patch antenna. The patch is grounded to the radiator plate and has a diameter smaller than the radiator plate. Thus, the notch antenna and the patch antenna have individual radiator elements with the radiator plate rendered as the ground plane for the patch antenna, the notch and patch antennas exhibit less mutual coupling so as to effectively separate horizontal polarization made by the notch antenna from vertical polarization by the patch antenna. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 9/04 (2006.01); H01Q 13/08 (2006.01); H01Q 13/10 (2006.01); H01Q 21/24 (2006.01); H01Q 21/28 (2006.01)
CPC (source: EP US)
H01Q 9/0407 (2013.01 - EP US); H01Q 13/10 (2013.01 - EP US); H01Q 21/24 (2013.01 - EP US); H01Q 21/28 (2013.01 - EP US)
Citation (search report)
- [AP] EP 0605338 A1 19940706 - FRANCE TELECOM [FR]
- [A] FR 2666691 A2 19920313 - CT REG INNOVAT TRANSFERT TECH [FR], et al
- [A] HIROYUKI ARAI ET AL: "Flat diversity antenna at 900 Mhz for mobile telephone", 42 ND VEHICULAR TECHNOLOGY SOCIETY CONFERENCE, vol. 1, May 1992 (1992-05-01), DENVER COLORADO US, pages 29 - 32, XP010064539, DOI: doi:10.1109/VETEC.1992.245403
- [A] PATENT ABSTRACTS OF JAPAN vol. 7, no. 107 (E - 174)<1252> 11 May 1983 (1983-05-11)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0671779 A1 19950913; EP 0671779 B1 19981216; DE 69506602 D1 19990128; DE 69506602 T2 19990506; JP H07249926 A 19950926; US 5519406 A 19960521
DOCDB simple family (application)
EP 95103182 A 19950306; DE 69506602 T 19950306; JP 3799694 A 19940309; US 38964895 A 19950216